JP7139930B2 - Fixing structure between the terminal block and the fixing part inside the equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fixing structure for a terminal block and a fixing portion inside a device .

2. Description of the Related Art Conventionally, a terminal block is sometimes used to connect two devices (for example, an inverter and a motor) in a vehicle. A terminal block has terminals that electrically connect two devices and a housing that holds the terminals, as described in Patent Document 1, for example. The housing is integrally formed with the terminal.

Japanese translation of PCT publication No. 2016-522550

Generally, when attaching a terminal block to a device such as an inverter, first, the tip of the terminal is inserted into the housing of the device through a mounting hole provided in the housing of the device. Then, the mounting hole is covered with the housing from the outside of the housing, and the housing is fixed to the housing with screws or the like on the outer periphery of the mounting hole. After that, a tool is inserted through an opening other than the mounting hole provided in the housing, and the terminal on the device side and the tip of the terminal on the terminal block are fastened and connected with bolts and nuts inside the housing. do.

By the way, there are various types of devices such as inverters depending on the type of vehicle, the grade of the vehicle, the equipment mounted on the vehicle, and the like. Therefore, the terminal block also has various shapes depending on the type of equipment. That is, various types of terminal blocks are required according to the shape of the mounting hole provided in the housing of the device for fixing the terminal block, the position of the terminals on the device side in the housing, and the like. For example, even if the shape of the mounting hole is the same, there are many cases where the connecting positions of the terminals on the device side and the terminals on the terminal block are different. Therefore, since there are many terminal blocks of different types (shapes), there is a problem that component management becomes complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fixing structure between a terminal block and a fixing portion inside a device, which can simplify component management.

A fixing structure for a terminal block and a fixing portion inside a device for solving the above-mentioned problems is a bus bar assembly having a bus bar made of metal and a holding portion for holding the bus bar by exposing the front end portion and the base end portion of the bus bar, and a housing into which the base end portion of the bus bar is inserted and the holding portion is fixed.

According to this configuration, the housing fixed to the housing of the device and the bus bar connected to the device inside the housing are formed separately. The busbar is fixed to the housing via the holding portion. For example, in multiple types of equipment, the shape of the mounting hole provided in the housing of the equipment for mounting the terminal block is the same, and the position where the tip of the bus bar and the terminal on the equipment side are connected inside the housing is different. may differ. In this case, the same housing can be used by changing the shape of the busbars of the busbar assembly. Also, for example, in a device, the connecting positions of the ends of the busbars and the terminals on the device side inside the housing are the same, and only the shape of the mounting hole provided in the housing of the device for mounting the terminal block is different. If different, the same busbar assembly can be used by changing the shape of the housing. Since the combination of the housing and the busbar assembly makes it possible to support various types of equipment, each type of housing and busbar assembly can be replaced with a conventional terminal in which a terminal and a housing are integrally formed. It is possible to reduce it compared to the type of platform. For these reasons, parts management can be simplified.

It is preferable that the bus bar is made of a metal plate.
According to this configuration, the bus bar is made of a metal plate material, and therefore can be easily processed. Therefore, it is preferable from the viewpoint that the bus bar can be formed into a desired shape more easily according to the internal configuration of the device to which the terminal block is attached.

The busbar assembly includes two busbars, a first busbar and a second busbar, and the holding portion holds the first busbar and the second busbar so that the first busbar and the second busbar are spaced at a predetermined distance. It is preferred to retain the second busbar.

According to this configuration, when the busbar assembly includes a plurality of busbars, the holding portion can maintain the busbars at predetermined intervals. Therefore, even if the busbar assembly includes a plurality of busbars, the busbars can be easily handled.

It is preferable that the busbar assembly is detachable from the housing by the retaining portion being detachable from the housing.
With this configuration, it becomes easier to replace the housing or busbar assembly according to the configuration of the equipment. In addition, "the holding part is detachable from the housing" means that the holding part can be removed from the housing. Further, "the busbar assembly is detachable from the housing" means that the busbar assembly can be removed from the housing by removing the holding portion from the housing. The busbar assembly may be detachable from the housing at least before the terminal block is attached to the housing of the device, and after the terminal block is attached to the housing of the device, the busbar assembly is It may be completely fixed with respect to the housing.

The housing has a fixed portion that is fixed to a housing of the device, and an insertion portion that protrudes from the fixed portion and into which the base end portion of the bus bar that penetrates the fixed portion is inserted. It is preferable that the front end of the bus bar be located on the outer peripheral side of the fixed portion when viewed in a direction parallel to the base end of the bus bar.

According to this configuration, when viewed from the direction parallel to the base end portion of the busbar in the insertion portion, the distal end of the busbar is located on the outer peripheral side of the fixing portion fixed to the housing. Therefore, it is not necessary to connect the distal end portion of the bus bar and the device-side terminal inside the housing within the range overlapping the fixed portion in the direction parallel to the base end portion of the bus bar in the insertion portion. Then, the position at which the tip of the busbar and the terminal on the device side are connected is set in a wide range outside the fixing portion when viewed from a direction parallel to the base end of the busbar in the insertion portion inside the housing. Therefore, it becomes easier to secure the space required for connecting the tip of the bus bar and the terminal on the device side. Therefore, it is possible to prevent the parts inside the device from being restricted in order to secure the space required for connecting the tip portion of the bus bar and the terminal on the device side, and the degree of freedom in designing the inside of the housing can be improved.

Further, when the terminal block is attached to the device, the housing is arranged with respect to the housing so as to cover the mounting hole provided in the housing for mounting the terminal block from the outside of the housing. Therefore, the fixing portion fixed to the housing is fixed to the outer peripheral portion of the mounting hole in the housing, and thus is larger than the mounting hole. Therefore, when viewed from a direction parallel to the base end of the busbar in the insertion portion, the distal end of the busbar, which is located on the outer peripheral side of the fixing portion, is located on the outer peripheral side of the mounting hole. A busbar assembly having busbars is provided separately from a housing that is arranged with respect to the housing from the outside of the housing, and can be fixed to the housing from the inside of the housing. Therefore, the terminal block can be attached to the housing even when the tip of the busbar is located on the outer peripheral side of the attachment hole when viewed from the direction parallel to the base end of the busbar in the insertion portion. Therefore, the position of the tip of the bus bar can be set at a desired position regardless of the size of the mounting hole. Therefore, when viewed from a direction parallel to the base end of the busbar in the insertion section, the tip of the busbar can be positioned on the outer peripheral side of the mounting hole. degree of freedom can be increased.

It is preferable that the busbar assembly has a positioning fixing portion that can be fixed to a device internal fixing portion provided inside a device to which the terminal block is attached, at a portion of the busbar that is closer to the distal end than the holding portion.

According to this configuration, the position of the bus bar in the housing can be easily determined by fixing the positioning fixing portion to the internal fixing portion. Therefore, it is possible to suppress variations in the positions of the tip portions of the busbars when the terminal block is attached to the housing. Moreover, it is possible to suppress the vibration of the busbar inside the housing.

The busbar assembly has a connector fitting portion at a tip portion of the busbar into which an in-equipment busbar connected to the busbar or an in-equipment connector provided at an end of an electric wire can be fitted, and the busbar It is preferable to electrically connect to the in-device bus bar or the electric wire through the in-device connector fitted to the connector fitting portion.

According to this configuration, the in-device bus bar or the electric wire and the bus bar are electrically connected by fitting the in-device connector into the connector fitting portion. Therefore, it is possible to easily connect the internal bus bar or electric wire to the bus bar. In addition, it becomes possible to connect the bus bar or electric wire in the device to the bus bar without using a tool. In addition, when the busbar is made of a metal plate material, the connector fitting portion can be easily provided at the tip portion of the busbar.

According to the fixing structure of the terminal block and the fixed portion inside the device of the present invention, parts management can be simplified.

The front view of the terminal block in one embodiment. The side view of the terminal block in one embodiment. The top view of the terminal block in one Embodiment. 1 is an exploded perspective view of a terminal block in one embodiment; FIG. 1 is a perspective view of a busbar assembly in one embodiment; FIG. FIG. 4 is an explanatory diagram for explaining a procedure for attaching the terminal block to the housing in one embodiment; (a) is a side view of the terminal block in a modification, (b) is a front view of the same terminal block. The exploded perspective view of the terminal block in the example of a change.

An embodiment of the terminal block will be described below.
A terminal block 1 of the present embodiment shown in FIG. 1 is a terminal block for connecting a conduction path of a vehicle such as a hybrid vehicle or an electric vehicle, and is attached to a housing 3 of a device 2 such as an inverter. It is a thing. A mounting hole 4 for mounting the terminal block 1 is formed in the housing 3 . The mounting hole 4 penetrates the housing 3 and communicates the inside and outside of the housing 3 . Although the terminal block 1 can be arranged in any direction, the following description assumes that the X direction is the front direction (the front direction of the paper surface in FIG. 1), the Y direction is the left direction, and the Z direction is the bottom direction.

The terminal block 1 includes a housing 10 fixed to the housing 3 and a busbar assembly 50 having first and second busbars 51 and 52 and fixed to the housing 10 .
The housing 10 is made of an insulating resin material. The housing 10 has a fixing portion 11 for fixing the housing 10 to the housing 3 and an insertion portion 12 projecting from the fixing portion 11 .

As shown in FIGS. 1 and 3, the fixed portion 11 has a substantially rectangular flat plate shape. The outer shape of the fixing portion 11 (outer shape when viewed from the thickness direction of the fixing portion 11 (same in the vertical direction)) is larger than the mounting hole 4 . At the four corners of the fixed portion 11, fastening holes 11a are formed through the fixed portion 11 in the vertical direction.

As shown in FIGS. 1 and 4, an annular seal for sealing between the housing 3 (equipment 2) and the fixed portion 11 is provided at the end portion of the fixed portion 11 opposite to the insertion portion 12, that is, the lower end portion. A member 31 is attached. The seal member 31 is made of an elastic member such as rubber. The seal member 31 has an annular seal body portion 32 larger than the mounting hole 4 and a plurality of seal fixing portions 33 protruding inward from the seal body portion 32 . The seal member 31 is attached to the fixed portion 11 by externally fitting the seal fixing portion 33 onto a plurality of fixing pins (not shown) protruding from the lower end portion of the fixed portion 11 inside the seal body portion 32 . .

As shown in FIGS. 1 to 3 , the insertion portion 12 is formed integrally with the fixed portion 11 . The insertion portion 12 has a tubular shape protruding upward (one side of the fixing portion 11 in the thickness direction) from the fixing portion 11 . In this embodiment, the insertion portion 12 has a cylindrical shape with rounded corners when viewed from above.

In addition, as shown in FIGS. 1, 2 and 4, the housing 10 has an assembly support portion 15 projecting downward from the fixed portion 11 (that is, the side opposite to the insertion portion 12). The assembly support portion 15 is formed integrally with the fixed portion 11 . The assembly support portion 15 of this embodiment has a substantially rectangular parallelepiped shape. Both side surfaces in the left-right direction of the assembly support portion 15 are parallel to the front-rear direction and the vertical direction, and both side surfaces in the front-rear direction are parallel to the left-right direction and the vertical direction. The assembly support portion 15 is provided in the central portion of the fixed portion 11 when viewed from above and has a smaller outer shape than the fixed portion 11 .

3 and 4, the housing 10 is formed with a first insertion hole 16 through which the first busbar 51 is inserted and a second insertion hole 17 through which the second busbar 52 is inserted. The first insertion hole 16 and the second insertion hole 17 vertically pass through the fixing portion 11 and the assembly support portion 15 . When the housing 10 is viewed from above (that is, from the side of the opening of the insertion portion 12 ), the upper openings of the first insertion hole 16 and the second insertion hole 17 are positioned inside the insertion portion 12 . The first insertion hole 16 and the second insertion hole 17 are spaced apart in the left-right direction when viewed from the top and bottom, and each have a rectangular shape elongated in the front-rear direction.

Further, in the housing 10, insulating walls 21 to 24 are provided on the upper surface of the fixing portion 11 and inside the insertion portion 12. As shown in FIG. The insulating walls 21 and 22 are erected upward from the fixed portion 11 on both lateral sides of the upper end opening of the first insertion hole 16 , and the insulating walls 23 and 24 are provided at the upper end opening of the second insertion hole 17 . are erected upward from the fixed portion 11 on both sides in the left-right direction.

The insulating wall 21 surrounds the left side of the upper end opening of the first insertion hole 16 and both sides in the front-rear direction of the upper end opening of the first insertion hole 16, and has a U-shape opening to the right when viewed from above. ing. In the insulating wall 21 , the portions located on both sides of the upper end opening of the first insertion hole 16 in the front-rear direction are higher than the portion located on the left side of the upper end opening of the first insertion hole 16 ( height from the top surface) is low. The insulating wall 22 located on the right side of the upper end opening of the first insertion hole 16 has a rectangular flat plate shape and surrounds the upper end opening of the first insertion hole 16 together with the insulating wall 21 .

The insulating wall 23 surrounds the right side of the upper end opening of the second insertion hole 17 and both sides in the front-rear direction of the upper end opening of the second insertion hole 17, and has a U-shape opening to the left when viewed from above. ing. In the insulating wall 23 , the portions located on both sides of the upper end opening of the second insertion hole 17 in the front-rear direction are higher than the portion located on the right side of the upper end opening of the second insertion hole 17 ( height from the top surface) is low. The insulating wall 24 located on the left side of the upper end opening of the second insertion hole 17 has a rectangular flat plate shape and surrounds the upper end opening of the second insertion hole 17 together with the insulating wall 23 .

A pair of shield insertion holes 25 and 26 are formed in the fixed portion 11 inside the insertion portion 12 and on the outer peripheral side of the first and second insertion holes 16 and 17 . Each of the shield insertion holes 25 and 26 vertically penetrates the fixed portion 11 . The shield insertion hole 25 has a slit shape extending along the proximal end of the insulating wall 21 on the outer peripheral side of the insulating wall 21 , and the shield insertion hole 26 extends along the proximal end of the insulating wall 23 on the outer peripheral side of the insulating wall 23 . It has a slit shape extending along the Also, when viewing the housing 10 from below, the shield insertion holes 25 and 26 extend along the contour of the upper end of the assembly support portion 15 . The outer peripheral surface of the assembly support portion 15 and the outer peripheral surfaces of the insulating walls 21 and 23 are continuous through the inner peripheral surfaces of the shield insertion holes 25 and 26 .

A shield 41 is attached to the housing 10 . The shield 41 is made of a metal plate and has a substantially tubular shape. The shield 41 includes a pair of shield body portions 42 inserted into the insertion portion 12 and the shield insertion holes 25 and 26 , and a shield fixing portion 43 fixing the shield 41 to the housing 10 . When viewed from above, the pair of shield main body portions 42 are U-shaped along the inner peripheral surfaces of the pair of shield insertion holes 25 and 26 . The pair of shield main body portions 42 are inserted into the insertion portion 12 from the corresponding shield insertion holes 25 and 26, and inside the insertion portion 12, the insulating walls 21 and 23 are formed on the outer peripheral side of the insulating walls 21 and 23. are placed along the

The shield fixing portion 43 is provided integrally with the lower end portions of the pair of shield body portions 42 . The shield fixing portion 43 has a rectangular tubular shape along the outer peripheral surface of the assembly support portion 15 and is externally inserted on the assembly support portion 15 . Also, the shield fixing portion 43 has a plurality of spring contact portions 44 . Each spring contact portion 44 has a role of passing a shield current by coming into contact with the side surface of the housing 3 when the terminal block 1 is attached to the housing 3 of the device 2 such as an inverter.

In addition, as shown in FIGS. 2 and 4 , the housing 10 has assembly fixing portions 27 for fixing the busbar assembly 50 to the housing 10 . In this embodiment, the assembly fixing portions 27 are provided on both lateral side surfaces of the assembly support portion 15, respectively, and the two assembly fixing portions 27 have the same shape. The two assembly fixing portions 27 are provided at positions below the shield 41 (shield fixing portion 43) on the assembly support portion 15. As shown in FIG.

The assembly fixing portion 27 provided on the left side surface of the assembly support portion 15 forms a projection that protrudes leftward from the left side surface and extends in the front-rear direction. Similarly, an assembly fixing portion 27 (not shown in FIGS. 2 and 4) provided on the right side surface of the assembly support portion 15 protrudes rightward from the right side surface and forms a ridge extending in the front-rear direction. . At the upper end of each assembly fixing portion 27, a planar contact surface 27a perpendicular to the vertical direction is provided. A guide portion 27b is formed at the lower end of each assembly fixing portion 27 so that the amount of protrusion in the left-right direction from the side surface of the assembly support portion 15 decreases as it goes downward. The two assembly fixing portions 27 have the same vertical and front-rear positions on the assembly support portion 15 . Also, the contact surfaces 27a of the two assembly fixing portions 27 are located on the same plane.

As shown in FIGS. 1 to 4, the busbar assembly 50 has a first busbar 51 and a second busbar 52 made of metal plates, and a holding portion 53 that holds the busbars 51 and 52 . The first and second bus bars 51 and 52 are formed by press-working a conductive metal plate material, and have a belt shape with a plurality of bent portions. Although various metals can be used for the first and second bus bars 51 and 52, it is preferable to use copper or aluminum from the viewpoint of conductivity and cost, for example. Also, an alloy containing at least one of copper and aluminum can be appropriately used as the material of the first and second bus bars 51 and 52 .

The base end portion of the first bus bar 51 is an insertion end portion 51 a that is inserted into the insertion portion 12 from the first insertion hole 16 , and the tip end portion of the first bus bar 51 is inside the device 2 , and the internal bus bar 5 is inserted into the device 2 . is the connection end portion 51b connected to the . Similarly, the base end portion of the second bus bar 52 is an insertion end portion 52 a that is inserted into the insertion portion 12 from the second insertion hole 17 , and the tip end portion of the second bus bar 52 is separate inside the device 2 . is a connection end portion 52b connected to the in-equipment bus bar 6 of .

The holding portion 53 is made of an insulating resin material. The holding portion 53 includes the distal end portions of the first and second bus bars 51 and 52 (that is, connection end portions 51b and 52b) and the base end portions of the first and second bus bars 51 and 52 (that is, insertion end portions 51a and 52a). ) are exposed to hold the first and second bus bars 51 and 52 . The base ends of the first and second bus bars 51 and 52 are positioned on the side of the holding portion 53 that is inserted into the housing 10, and the tip ends of the first and second bus bars 51 and 52 are positioned on the holding portion 53. It is located on the side opposite to the proximal end with respect to the portion 53 . The base ends of the first and second bus bars 51 and 52 need only be positioned on the side of the holding portion 53 to be inserted into the housing 10, and are inserted into the housing 10 starting from the holding portion 53. It may be positioned on a part of the side. Similarly, the distal end portions of the first and second bus bars 51 and 52 may be located on the side opposite to the base end portions of the first and second bus bars 51 and 52 with respect to the holding portion 53. It may be positioned at a part of the portion of the second busbars 51 and 52 that protrudes from the holding portion 53 to the side opposite to the base ends of the first and second busbars 51 and 52 .

The holding portion 53 includes a holding main body portion 54 having a substantially rectangular parallelepiped shape, four extending portions 55 extending upward from the upper end portion of the holding main body portion 54 , and an assembly-side fixing portion 56 provided integrally with the holding main body portion 54 . and The holding portion 53 of this embodiment is formed integrally with the first and second bus bars 51 and 52 .

Both side surfaces in the left-right direction of the holding main body 54 are parallel to the front-rear direction and the up-down direction, and both side surfaces in the front-rear direction are parallel to the left-right direction and the up-down direction. The holding body portion 54 embeds and holds a portion between the insertion end portion 51a and the connection end portion 51b of the first bus bar 51, and also holds the portion between the insertion end portion 52a and the connection end portion 52b of the second bus bar 52. part of is buried and retained.

As shown in FIG. 5 , the first bus bar 51 is provided with a retaining hole 51 c in the portion held by the holding body portion 54 , and the second bus bar 52 is provided with a retaining hole 51 c in the portion held by the holding body portion 54 . A retaining hole 52c is provided. Each retaining hole 51c, 52c is filled with a resin material forming the holding body portion 54. As shown in FIG. Therefore, relative movement between the first and second bus bars 51 and 52 and the holding body portion 54 (holding portion 53) is prevented by the retaining holes 51c and 52c and the resin material that has entered the retaining holes 51c and 52c. ing.

As shown in FIGS. 1 to 4, the four extensions 55 extend upward from four corners of the upper end of the holding body 54, respectively. Each extending portion 55 has an L-shape along the corners of the holding body portion 54 when viewed from above.

The assembly-side fixing portions 56 are provided at both ends of the holding body portion 54 in the left-right direction, respectively, and the two assembly-side fixing portions 56 have the same shape. An assembly-side fixing portion 56 provided at the left end portion of the holding body portion 54 extends upward from the holding body portion 54 between the two extension portions 55 on the left side. Similarly, an assembly-side fixing portion 56 provided at the right end of the holding body portion 54 extends upward from the holding body portion 54 between the two extension portions 55 on the right side. Each assembly-side fixing portion 56 has a locking hole 56a penetrating the same assembly-side fixing portion 56 in the left-right direction. The longitudinal width of the locking hole 56 a is equal to or slightly wider than the longitudinal width of the assembly fixing portion 27 of the housing 10 . The vertical width of the locking hole 56 a is equal to or slightly wider than the vertical width of the assembly fixing portion 27 . The inner peripheral surface of the locking hole 56a is provided with a contact surface 56b that is flat and faces downward, perpendicular to the vertical direction. Each assembly-side fixing portion 56 is elastically deformable such that the distal end thereof is displaced in the left-right direction with respect to the proximal end.

Such a holding portion 53 holds the first and second bus bars 51 and 52 at a constant interval. That is, the holding portion 53 holds the first and second busbars 51 and 52 so that the first busbar 51 and the second busbar 52 are spaced apart from each other by a predetermined distance. Note that the "predetermined spacing" means that the base end of the first bus bar 51 and the base end of the second bus bar 52 have a spacing that enables connection with a terminal provided in a connector connected to the terminal block 1. , is the distance between the first bus bar 51 and the second bus bar 52 . The insertion end portions 51a and 52a protruding upward from the holding main body portion 54 are spaced apart in the left-right direction and parallel to each other, and their tip positions in the vertical direction are equal. Insulating caps 57 made of an insulating resin material are attached to the tip portions of the first and second bus bars 51 and 52, respectively.

In addition, the portion of the first bus bar 51 protruding downward from the holding portion 53 (the portion closer to the connection end portion 51b than the holding portion 53) extends downward from the holding portion 53, is bent, extends to the right, and then extends downward. It extends rearward from the holding portion 53, further extends to the right side of the holding portion 53, and then bends and extends upward. In the present embodiment, the portion of the first bus bar 51 that extends upward from the tip is the connecting end portion 51b. The connecting end portion 51b is provided with a connecting hole 51d penetrating through the connecting end portion 51b in the thickness direction.

A portion of the second bus bar 52 projecting downward from the holding portion 53 (a portion closer to the connecting end portion 52b than the holding portion 53) extends downward from the holding portion 53 and then bends to extend rightward. When it extends to the right side of 53, it is bent and extends upward. In the present embodiment, the portion of the second bus bar 52 that extends upward from the tip is the connection end portion 52b. The connecting end portion 52b is provided with a connecting hole 52d penetrating through the connecting end portion 52b in the thickness direction. In addition, in the portion of the second bus bar 52 closer to the distal end than the holding portion 53 , the portion between the two bent portions is located on the right side of the retaining portion 53 in the portion of the first bus bar closer to the distal end than the holding portion 53 . extends parallel to the portion located at Further, in the present embodiment, the connection end portion 51b of the first bus bar 51 and the connection end portion 52b of the second bus bar 52 are aligned vertically and horizontally with respect to the holding portion 53 and aligned in the front-rear direction. When the busbar assembly 50 is viewed from above and below, the tip of the first busbar 51 and the tip of the second busbar 52 are located on the outer peripheral side of the holding portion 53 .

As shown in FIGS. 1, 4 and 6, when mounting the terminal block 1 to the housing 3 of the device 2, first, the housing 10 with the sealing member 31 and the shield 41 mounted thereon is fixed to the housing 3. do. Specifically, while inserting the assembly support portion 15 into the mounting hole 4 from the outside of the housing 3 , the housing 10 is arranged with respect to the housing 3 from the outside of the housing 3 . When the housing 10 is arranged with respect to the housing 3, the mounting hole 4 provided in the housing 3 is covered with the fixing portion 11 from the outside of the housing 3, and the seal body portion 32 of the seal member 31 is closed. , contact the outer peripheral portion of the mounting hole 4 on the outer surface 3 a of the housing 3 . That is, the mounting hole 4 is larger than the assembly support portion 15 (outer shape of the assembly support portion 15 as seen from the vertical direction) and smaller than the inner peripheral edge of the seal member 31 (the inner peripheral edge of the seal body portion 32). Thereafter, a bolt (not shown) is inserted into each fastening hole 11a, and a nut is screwed onto the bolt to fix the housing 10 to the housing 3 (the state shown in FIG. 6). As a result, the seal member 31 is brought into close contact with the outer surface 3 a of the housing 3 and the fixing portion 11 at the outer circumference of the mounting hole 4 . Therefore, the seal member 31 liquid-tightly seals the space between the outer surface 3 a of the housing 3 and the fixed portion 11 , so that liquid is prevented from entering the housing 3 through the mounting hole 4 .

Next, the busbar assembly 50 is fixed to the housing 10 from inside the housing 3 . The busbar assembly 50 is inserted into the housing 3 through an opening provided in the housing 3 separately from the mounting hole 4 . When fixing the busbar assembly 50 to the housing 10, first, the insertion end portion 51a of the first busbar 51 is inserted into the first insertion hole 16 from the lower end side of the assembly support portion 15, and the second busbar 52 is The insertion end portion 52 a is inserted into the second insertion hole 17 from the lower end side of the assembly support portion 15 . Furthermore, when the holding body portion 54 of the holding portion 53 is moved upward toward the lower end portion of the assembly support portion 15 , the lower end portion of the assembly support portion 15 is inserted inside the four extension portions 55 . At the same time, along with the movement of the holding main body 54, the assembly-side fixing portions 56 are guided by the guide portions 27b of the assembly fixing portions 27 on both sides in the left-right direction of the assembly support portion 15, and are elastically deformed so that the tips are shifted outward. be done. When the contact surface 56b of the assembly-side fixing portion 56 exceeds the assembly-side fixing portion 27, the assembly-side fixing portion 56 returns to its original shape, and the assembly-side fixing portion 27 is inserted into the locking hole 56a of the assembly-side fixing portion 56. fit. The busbar assembly 50 is fixed to the housing 10 by fitting the assembly fixing portion 27 into the locking hole 56a. The contact surface 27a of the assembly fixing portion 27 and the contact surface 56b of the locking hole 56a contact each other, thereby preventing downward movement of the busbar assembly 50 with respect to the housing 10. FIG. Further, the upper end of the assembly support portion 15 and the upper end of the holding body portion 54 abut against each other, thereby preventing upward movement of the busbar assembly 50 with respect to the housing 10 . Further, movement of the busbar assembly 50 in the front-rear direction and the left-right direction with respect to the housing 10 is prevented by the assembly-side fixing portion 56 and the extension portion 55 contacting the outer peripheral surface of the assembly support portion 15 .

The bus bar assembly 50 can be attached to and detached from the housing 10 by attaching and detaching the holding portion 53 to the housing 10 . In this embodiment, after the bus bar assembly 50 is fixed to the housing 10, the assembly fixing portion 27 is removed from the locking hole 56a by elastically deforming the assembly side fixing portion 56 so that the tip thereof is displaced outward. The holding part 53 can be removed from the housing 10 by moving the holding part 53 away from the housing 10 . By removing the holding portion 53 from the housing 10 , the busbar assembly 50 can be removed from the housing 10 . The bus bar assembly 50 is fixed to the housing 10 both before the terminal block 1 is mounted on the housing 3 of the device 2 and after the terminal block 1 is mounted on the housing 3 of the device 2. If so, it can be removed as described above.

As shown in FIGS. 1 and 3, when the busbar assembly 50 is fixed to the housing 10, the first and second busbars 51 and 52 pass through the inside of the seal member 31 and pass through the fixing portion 11. is doing. The base ends of the first and second bus bars 51 and 52 inserted into the insertion portion 12 through the fixing portion 11, that is, the insertion ends 51a and 52a extend vertically in the insertion portion 12. extending parallel. The insertion end 51a is surrounded by insulating walls 21 and 22, and the insertion end 52a is surrounded by insulating walls 23 and 24. As shown in FIG. Furthermore, the insertion ends 51 a and 52 a are arranged inside the pair of shield body portions 42 . When viewed from a direction parallel to the base end portions (that is, insertion end portions 51a and 52a) of the first and second busbars 51 and 52 in the insertion portion 12, the distal ends of the first and second busbars 51 and 52 are It is located on the outer peripheral side of the mounting hole 4 provided in the housing 3 . It should be noted that "viewed from a direction parallel to the base ends of the first and second bus bars 51 and 52 in the insertion portion 12" means that "the fixing surface where the housing 10 is fixed to the housing 3 of the device 2 is the top surface. When you look at it," I agree. The fixing surface is a surface of the fixing portion 11 that directly faces the housing 3 when the housing 10 is fixed to the housing 3, and corresponds to the lower surface of the fixing portion 11 in this embodiment. The direction parallel to the base ends of the first and second bus bars 51 and 52 in the insertion portion 12 is the same as the through-hole direction of the mounting hole 4 when the terminal block 1 is mounted on the housing 3 . Furthermore, in this embodiment, the direction parallel to the base ends of the first and second busbars 51 and 52 in the insertion portion 12 is the same as the direction in which the busbar assembly 50 is assembled to the housing 10, and the vertical direction is the same. correspond to In addition, when viewed from the same direction, the tips of the first and second bus bars 51 and 52 are located on the outer peripheral side of the inner peripheral edge of the seal member 31 (the inner peripheral edge of the seal main body portion 32). Also, when viewed from the same direction, the tips of the first and second bus bars 51 and 52 are located on the outer peripheral side of the assembly support portion 15 . Furthermore, when viewed from the same direction, the tips of the first and second bus bars 51 and 52 are located on the outer peripheral side of the fixed portion 11 . Also, when viewed from the same direction, the tips of the first and second bus bars 51 and 52 are located on the outer peripheral side of the housing 10 .

As shown in FIG. 3 , inside the housing 3 , the internal bus bar 5 is connected to the connection end 51 b of the first bus bar 51 and the connection end 52 b of the second bus bar 52 of the terminal block 1 attached to the housing 3 . , 6 are connected. A connecting tool is inserted into the interior of the housing 3 through the opening provided in the housing 3, and the connection end 51b of the first bus bar 51 and the internal bus bar 5 are fastened with the bolts 7a and the nuts 7b. connected by At this time, the bolt 7a is inserted through the connection hole 51d provided in the connection end portion 51b. Similarly, a connection tool is inserted into the housing 3 through the opening, and the connection end 52b of the second bus bar 52 and the internal bus bar 6 are fastened with bolts 8a and nuts 8b, thereby connecting. be done. At this time, the bolt 8a is inserted through the connection hole 52d provided in the connection end portion 52b.

The action and effect of this embodiment will be described.
(1) The housing 10 fixed to the housing 3 of the device 2 and the first and second bus bars 51 and 52 connected to the device inside the housing 3 are formed separately. The first and second busbars 51 and 52 are fixed to the housing via the holding portion 53 .

For example, in multiple types of equipment, the shape of the mounting hole provided in the housing of the equipment for mounting the terminal block is the same, and the position where the tip of the bus bar and the terminal on the equipment side are connected inside the housing is different. may differ. In this case, the same housing 10 can be used by changing the shape of the first and second bus bars 51 and 52 of the bus bar assembly 50 . Also, for example, in multiple types of equipment, the connection positions of the ends of the busbars and the terminals on the equipment side are the same inside the casing, and the mounting holes provided in the casing of the equipment for mounting the terminal blocks are not the same. Only the shape may differ. In this case, if the shape of the housing 10 is changed, the same busbar assembly 50 can be used. Since the combination of the housing and the busbar assembly makes it possible to support various types of equipment, each type of housing and busbar assembly can be replaced with a conventional terminal in which a terminal and a housing are integrally formed. It is possible to reduce it compared to the type of platform. For these reasons, parts management can be simplified.

(2) Since the first and second bus bars 51 and 52 are made of metal plates, they are easy to process. Therefore, it is preferable from the viewpoint that the first and second bus bars 51 and 52 can be formed into a desired shape more easily according to the internal configuration of the device 2 to which the terminal block 1 is attached. Since it is relatively easy to process the first and second bus bars 51 and 52 into complicated shapes, the shapes of the first and second bus bars 51 and 52 and the tips of the first and second bus bars 51 and 52 This is more preferable from the viewpoint of alleviating the restriction due to the position of , and increasing the degree of freedom of connection positions between the first and second bus bars 51 and 52 and the in-device bus bars 5 and 6 on the side of the device 2 .

(3) The busbar assembly 50 includes two busbars, that is, a first busbar 51 and a second busbar 52, and the holding portion 53 is arranged so that the first busbar 51 and the second busbar 52 are separated by a predetermined distance. It holds the busbar 51 and the second busbar 52 . Therefore, when the busbar assembly 50 includes a plurality of busbars (two busbars, that is, the first busbar 51 and the second busbar 52 in this embodiment), the holding portion 53 maintains the busbars 51 and 52 at a predetermined interval. be able to. Therefore, even if the busbar assembly 50 includes a plurality of busbars 51 and 52, the busbars 51 and 52 can be easily handled.

(4) The busbar assembly 50 is attachable/detachable to/from the housing 10 because the holding portion 53 is attachable/detachable to/from the housing 10 . Therefore, it becomes easier to replace the housing 10 or the busbar assembly 50 according to the configuration of the device 2 .

(5) When viewed from a direction parallel to the base end portions of the first and second busbars 51 and 52 (that is, the insertion end portions 51a and 52a) in the insertion portion 12, the tips of the first and second busbars 51 and 52 are , is located on the outer peripheral side of the fixing portion 11 fixed to the housing 3 . Therefore, the connection between the distal ends of the first and second busbars 51 and 52 and the internal busbars 5 and 6 is made inside the housing 3 by connecting the base ends of the first and second busbars 51 and 52 in the insertion section 12 It does not have to be performed within a range that overlaps with the fixed portion 11 in the direction parallel to the portion. Within the housing, within the range overlapping the housing in a direction parallel to the base end of the busbar (the end located outside the housing), depending on the internal configuration of the device, the tip of the busbar and the busbar inside the device, etc. It may be difficult to secure a space for connecting the connection partner. However, in the present embodiment, the positions for connecting the distal end portions of the first and second busbars 51 and 52 and the in-device busbars 5 and 6 are set to the first and second positions inside the insertion section 12 inside the housing 3 . It can be set in a wide range outside the fixing portion 11 when viewed in a direction parallel to the base ends of the busbars 51 and 52 . Therefore, it becomes easy to secure the space required for connecting the tip portions of the first and second bus bars 51 and 52 to the in-device bus bars 5 and 6 . Therefore, it is possible to prevent the parts inside the device 2 from being restricted in order to secure the space required for connecting the tips of the first and second busbars 51 and 52 and the internal busbars 5 and 6. The degree of freedom in internal design can be improved.

Further, when the terminal block 1 is attached to the device 2, the housing 10 is arranged with respect to the housing 3 so as to cover the attachment hole 4 from the outside of the housing 3. As shown in FIG. Therefore, the fixing portion 11 fixed to the housing 3 is fixed to the outer peripheral portion of the mounting hole 4 in the housing 3 and is larger than the mounting hole 4 . Therefore, when viewed from the direction parallel to the base ends of the first and second bus bars 51 and 52 in the insertion portion 12, the tips of the first and second bus bars 51 and 52 located on the outer peripheral side of the fixed portion 11 are , is located on the outer peripheral side of the mounting hole 4 . The busbar assembly 50 having the first and second busbars 51 and 52 is provided separately from the housing 10 which is arranged with respect to the housing 3 from the outside of the housing 3, and is arranged from the inside of the housing 3. It can be fixed to the same housing 10 . Therefore, when viewed from the direction parallel to the base ends of the first and second bus bars 51 and 52 in the insertion portion 12, the tips of the first and second bus bars 51 and 52 are located on the outer peripheral side of the mounting hole 4. Even in this case, the terminal block 1 can be attached to the housing 3 . Therefore, the positions of the tips of the first and second bus bars 51 and 52 can be set at desired positions regardless of the size of the mounting hole 4 . Therefore, the tips of the first and second busbars 51 and 52 are positioned on the outer peripheral side of the mounting hole 4 when viewed from the direction parallel to the base ends of the first and second busbars 51 and 52 in the insertion portion 12 . Therefore, the degree of freedom in positioning the tips of the first and second bus bars 51 and 52 inside the housing 3 can be increased.

(6) When the busbar is integrally provided with the housing as in the conventional terminal block, the position of the tip of the busbar can be freely set by enlarging the mounting hole provided in the housing. However, if the mounting hole is enlarged, the peripheral length of the seal member interposed between the housing and the casing is also increased. Then, in order to ensure the waterproof performance of the sealing member, it becomes necessary to increase the fastening force when fastening and fixing the housing to the housing. As a result, the load applied to the fixed portion between the housing and the housing increases, and the assembly becomes difficult. On the other hand, in the terminal block 1 of the present embodiment, the busbar assembly 50 having the first and second busbars 51 and 52 is different from the housing 10 arranged with respect to the housing 3 from the outside of the housing 3. It is provided separately and fixed to the housing 10 from the inside of the housing 3 . Therefore, the positions of the tips of the first and second bus bars 51 and 52 can be set at desired positions without enlarging the mounting hole 4 . Therefore, the waterproof performance of the sealing member 31 can be ensured without increasing the fastening force when fixing the housing 10 to the housing 3 . As a result, it is possible to prevent a large load from being applied to the fixing portion between the housing 10 and the casing 3 and reduce the ease of assembly.

This embodiment can be implemented with the following modifications. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
- The busbar assembly may have a connector fitting portion at the tip of the busbar into which an in-equipment busbar connected to the busbar or an in-equipment connector provided at the end of the electric wire can be fitted.

For example, a terminal block 1A shown in FIGS. 7(a), 7(b) and 8 has the housing 10 of the above embodiment and a busbar assembly 50A. The busbar assembly 50A has a holding portion 53, first and second busbars 51A and 52A, and connector fitting portions 61 provided at the distal end portions of the first and second busbars 51A and 52A. In addition, in this example, the same code|symbol is attached|subjected to the structure same as the said embodiment, or the structure corresponding to it, and the description is abbreviate|omitted.

The base end portion of the first bus bar 51A is the insertion end portion 51a that is inserted into the insertion portion 12, and the tip portion of the first bus bar 51A is connected to the in-device bus bar 5A inside the device 2A. This is the end portion 51f. The proximal end of the second bus bar 52A is the insertion end 52a that is inserted into the insertion section 12, and the distal end of the second bus bar 52A is connected to the in-device bus bar 6A inside the device 2A. It is the connecting end portion 52f.

A portion of the first bus bar 51A protruding downward from the holding portion 53 (a portion closer to the connection end portion 51f than the holding portion 53) extends downward from the holding portion 53 while bending in a plane orthogonal to the left-right direction, and then bends. and extends to the left. A portion of the second bus bar 52A protruding downward from the holding portion 53 bends in a plane perpendicular to the left-right direction and extends below the tip portion of the first bus bar 51A, and then bends to the left side. extends to Both the connecting end portion 51f of the first bus bar 51A and the connecting end portion 52f of the second bus bar 52A extend in the horizontal direction.

The connector fitting portion 61 is formed integrally with the tip portions (that is, connection end portions 51f and 52f) of the first and second bus bars 51A and 52A. The connector fitting portion 61 includes a connector fixing portion 62 for fixing the connector fitting portion 61 to the first and second busbars 51A and 52A, and a connector fixing portion 62 extending from the connector fixing portion 62 to the tips of the first and second busbars 51A and 52A. and a laterally extending fitting portion 63 .

The connector fixing portion 62 embeds portions between the tips and the bent portions of the first and second bus bars 51A and 52A. Retaining holes 51g and 52g penetrating through the busbars 51A and 52A are provided in portions of the first and second busbars 51A and 52A that are embedded in the connector fixing portion 62, respectively. A part of the resin material forming the connector fitting portion 61 enters the retaining holes 51g and 52g, thereby suppressing movement of the connector fitting portion 61 with respect to the first and second bus bars 51A and 52A.

The fitting portion 63 has a first fitting recess 65 and a second fitting recess 66 recessed to the right from the tip (left end) of the fitting portion 63 . Inside the first fitting recess 65, the connection end portion 51f of the first bus bar 51A protruding from the connector fixing portion 62 is exposed. In addition, the connection end portion 52f of the second bus bar 52A protruding from the connector fixing portion 62 is exposed inside the second fitting recess 66. As shown in FIG.

In addition, the busbar assembly 50A can be fixed to the device internal fixing portion 9 provided inside the device 2A to which the terminal block 1A is attached, at a portion of the first and second busbars 51A and 52A on the distal end side of the holding portion 53. positioning fixing portion 71. In this example, the positioning fixing portion 71 is provided integrally with the connector fitting portion 61 .

A planar contact surface 67 perpendicular to the left-right direction is provided on the outer peripheral surface of the fitting portion 63 on the left side of the fitting portion 63 and above the second fitting recess 66 . . The contact surface 67 is located at a position overlapping the connection end portion 51f of the first bus bar 51A in the left-right direction. The positioning fixing portion 71 is composed of a pair of positioning pins 72 projecting from the contact surface 67 . The pair of positioning pins 72 are spaced apart in the vertical direction. Each positioning pin 72 has a semicircular shaft portion 72a extending leftward from the contact surface 67 and a semicircular shape having a radius larger than that of the shaft portion 72a. and a locking portion 72b. An arcuate portion of the outer peripheral edge of the distal end portion of the locking portion 72b is provided with an inclined surface that is inclined so that the radius of the locking portion 72b decreases toward the distal end side. Further, the facing surfaces 72c of the pair of positioning pins 72 facing each other are planar and perpendicular to the vertical direction. The pair of positioning pins 72 can be elastically deformed so that their tips are brought closer to each other.

The device internal fixing portion 9 is, for example, a bracket formed by pressing a metal plate material. The intra-equipment fixing portion 9 has a positioning surface 9 a capable of coming into contact with the contact surface 67 inside the housing 3 . In addition, the device internal fixing portion 9 has a fixing hole 9b that opens to the positioning surface 9a. The fixing hole 9b is larger than the outer circumference of the shaft portion 72a of the pair of positioning pins 72 and smaller than the outer circumference of the engaging portion 72b of the pair of positioning pins 72 when viewed from the through direction of the fixing hole 9b. However, the size of the fixing hole 9b is such that the two locking portions 72b can pass through when the pair of positioning pins 72 are elastically deformed. In addition, in the device-internal fixing portion 9, the thickness of the outer peripheral portion of the fixing hole 9b is substantially equal to the width of the gap between the contact surface 67 and the locking portion 72b.

Such a terminal block 1A is attached to the housing 3 of the device 2A in the same procedure as in the above embodiment. After that, the positioning fixing portion 71 is fixed to the internal fixing portion 9 by inserting the pair of positioning pins 72 into the fixing holes 9b while elastically deforming them. The pair of positioning pins 72 return to their original shape when the engaging portions 72b pass through the fixing holes 9b. As a result, the contact surface 67 comes into contact with the positioning surface 9a, and the portion of the outer circumference of the fixing hole 9b in the internal fixing portion 9 is sandwiched between the contact surface 67 and the locking portion 72b. Therefore, by fixing the positioning fixing portion 71 to the device internal fixing portion 9 , the connector fitting portion 61 is positioned inside the housing 3 and the first and second connectors inside the housing 3 are positioned. Positioning of the busbars 51A and 52A is performed. The tips of the first and second busbars 51A and 52A are arranged in a direction parallel to the base ends of the first and second busbars 51A and 52A (that is, the insertion ends 51a and 51b) in the insertion portion 12 (that is, in the vertical direction). ), it is located on the outer peripheral side of the fixing portion 11 and further on the outer peripheral side of the housing 10 .

After that, the in-device connector 101 provided at the end of the in-device bus bar 5</b>A is fitted into the first fitting recess 65 . The in-device connector 101 includes a female terminal (not shown) electrically connected to the in-device bus bar 5A. When the in-device connector 101 is fitted into the first fitting recess 65, the connection end 51f of the first bus bar 51A is inserted into the female terminal, and the in-device bus bar 5A and the first bus bar 51A are connected via the female terminal. are electrically connected. Similarly, the in-device connector 102 provided at the end of the in-device bus bar 6A is fitted into the second fitting recess 66 . The in-device connector 102 includes a female terminal (not shown) electrically connected to the in-device bus bar 6A. When the in-device connector 102 is fitted into the second fitting recess 66, the connection end 52f of the second bus bar 52A is inserted into the female terminal, and the in-device bus bar 6A and the second bus bar 52A are connected via the female terminal. are electrically connected.

By doing so, the positioning fixing portion 71 is fixed to the device internal fixing portion 9, so that the positions of the first and second bus bars 51A and 52A within the housing 3 are easily determined. Therefore, it is possible to suppress variations in the positions of the tip portions of the first and second bus bars 51A and 52A when the terminal block 1A is mounted on the housing 3. FIG. In addition, vibration of the first and second bus bars 51A and 52A inside the housing 3 can be suppressed. Further, when the first and second bus bars 51A, 52A and the in-device bus bars 5A, 6A are connected after fixing the positioning fixing part 71 to the in-device fixing part 9, the tip ends of the first and second bus bars 51A, 52A It is possible to connect the first and second bus bars 51A and 52A to the in-device bus bars 5A and 6A in a state in which displacement of the parts is suppressed. Therefore, the connection between the first and second bus bars 51A, 52A and the in-device bus bars 5A, 6A can be made more easily.

In addition, since the first and second bus bars 51A, 52A are made of metal plates, the connector fitting portions 61 can be easily provided at the tip portions of the first and second bus bars 51A, 52A. The in-device busbars 5A and 6A and the first and second busbars 51A and 52A are electrically connected by fitting the in-device connectors 101 and 102 into the connector fitting portions 61 . Therefore, it is possible to easily connect the in-equipment bus bars 5A and 6A to the first and second bus bars 51A and 52A. Further, it becomes possible to connect the internal bus bars 5A, 6A and the first and second bus bars 51A, 52A without using tools.

The positioning fixing portion 71 may be fixed to the internal fixing portion 9 after the internal connectors 101 and 102 are inserted into the first and second fitting recesses 65 and 66 . Even in this way, it is possible to suppress the first and second bus bars 51A and 52A from vibrating inside the housing 3 .

In addition, the device-inside fixing portion 9 is not limited to being provided as a single unit and fixed inside the housing 3 , but may be provided integrally with a component within the device 2 . Further, the shape of the positioning fixing portion 71 is not limited to the shape described above. The positioning fixing portion 71 may have any shape as long as it can be fixed to the device internal fixing portion 9 within the housing 3 . For example, the in-equipment fixing portion 9 may have a fixing pin, and the positioning fixing portion 71 may have a hole into which the fixing pin is press-fitted.

Also, the connector fitting portion 61 may be provided separately from the first and second bus bars 51A, 52A and assembled to the first and second bus bars 51A, 52A.
Further, in the busbar assembly 50A described above, the connector fitting portion 61 is integrally provided with the positioning fixing portion 71, but the connector fitting portion 61 and the positioning fixing portion 71 may be provided separately. Also, the bus bar assembly 50A does not necessarily have to include the connector fitting portion 61 . In this case, the positioning fixing portion 71 is provided on the first bus bar 51A or the second bus bar 52A by integral molding or assembly. Also, the busbar assembly 50A described above does not necessarily have to include the positioning fixing portion 71 .

In the busbar assembly 50A described above, the in-device connector 101 connected to the first busbar 51A and the in-device connector 102 connected to the second busbar 52A are fitted into one connector fitting portion 61. . However, the connector fitting portion provided at the tip portion of the first bus bar 51A and the connector fitting portion provided at the tip portion of the second bus bar 52A may be provided separately.

Further, the in-device connectors 101 and 102 may be provided at the ends of electric wires in the device instead of the in-device bus bars 5A and 6A.
In the above-described embodiment, when viewed from the direction parallel to the base ends of the first and second bus bars 51 and 52 in the insertion section 12, the tips of the first and second bus bars 51 and 52 are located further than the fixing section 11. Located on the outer circumference. However, the positions of the tips of the first and second bus bars 51 and 52 when viewed from the same direction are not limited to this. For example, the tips of the first and second bus bars 51 and 52 may be positioned inside the mounting hole 4 when viewed from the same direction. Even in this way, the same function and effect as (1) of the above embodiment can be obtained.

Further, for example, when viewed from the same direction, the tips of the first and second bus bars 51 and 52 are located on the outer peripheral side of the mounting hole 4 and on the inner peripheral side of the inner peripheral edge of the seal member 31 (the inner peripheral edge of the seal main body portion 32). may be located on the side. Further, for example, when viewed from the same direction, the tips of the first and second bus bars 51 and 52 may be located on the outer peripheral side of the seal member 31 and on the inner side of the outer peripheral edge of the fixed portion 11 . Even in this way, the same actions and effects as in the above embodiment can be obtained.

- In the above embodiment, the first and second bus bars 51, 52 have the retaining holes 51c, 52c. However, the first and second bus bars 51 and 52 may have cutouts in portions embedded in the holding portion 53 instead of the retainer holes 51c and 52c. This notch is provided at least one end in the width direction of each bus bar 51, 52, is recessed toward the center in the width direction, and penetrates each bus bar 51, 52 in the thickness direction. Even in this case, the resin material forming the holding portion 53 enters the notch, thereby suppressing the movement of the holding portion 53 with respect to the first and second bus bars 51 and 52 . Further, for example, the first and second bus bars 51 and 52 may have retaining recesses recessed in the thickness direction of the bus bars 51 and 52 instead of the retaining holes 51c and 52c. Even in this way, the resin material forming the holding portion 53 enters the inside of the retainer recess, thereby suppressing the movement of the holding portion 53 with respect to the first and second bus bars 51 and 52 . Note that the first and second bus bars 51 and 52 do not necessarily have the retaining holes 51c and 52c, the cutouts, and the retaining recesses.

In the above-described embodiment, the busbar assembly 50 has the holding portion 53 attached to and detached from the housing 10 before and after the terminal block 1 is attached to the housing 3 of the device 2 . It is detachable from the housing 10 because it is possible. However, the busbar assembly 50 is detachable from the housing 10 at least before the terminal block 1 is attached to the housing 3 of the device 2 because the holding portion 53 is detachable from the housing 10 . I wish I had. That is, after the terminal block 1 is attached to the housing 3 of the device 2 , the busbar assembly 50 may be completely (that is, irremovably) fixed to the housing 10 . If it is not necessary to fix the busbar assembly 50 to the housing 10 before the terminal block 1 is attached to the housing 3 of the device 2, the busbar assembly 50 cannot be removed once fixed to the housing 10. It may be configured as follows.

- In the above embodiment, the holding portion 53 is formed integrally with the first and second bus bars 51 and 52 . However, the configuration in which the holding portion 53 holds the first and second bus bars 51 and 52 is not limited to this. For example, the holding portion 53 may be composed of two parts that are assembled together, one part being integrally formed with the first bus bar 51 and the other part being integrally formed with the second bus bar 52 . Further, for example, the holding portion 53 may be formed separately from the first and second bus bars 51 and 52 . In this case, for example, the holding portion 53 has a shape divided into a plurality of pieces and is assembled to the first and second bus bars 51 and 52 . Further, in this case, the components of the holding portion 53 assembled to the first busbar 51 and the components of the holding portion 53 assembled to the second busbar 52 may be separate bodies.

- In the above embodiment, the busbar assembly 50 has two busbars, the first busbar 51 and the second busbar 52 . However, the number of busbars provided in the busbar assembly 50 is not limited to two, and may be one or more.

- In the above embodiment, the first and second bus bars 51 and 52 are made of metal plates. However, the first and second bus bars 51 and 52 are not limited to metal plate material as long as they are made of metal. For example, the first and second bus bars 51 and 52 may be cylindrical round pins made of metal.

In the above embodiment, the busbar assembly 50 is fixed to the housing 10 by fitting the assembly-side fixing portion 56 of the busbar assembly 50 with the assembly fixing portion 27 of the housing 10 . The numbers and positions of the assembly-side fixing portions 56 and the assembly fixing portions 27 may be changed as appropriate. Further, the structure for fixing the busbar assembly 50 to the housing 10 is not limited to this. For example, the housing 10 may be provided with the assembly-side fixing portion 56 of the above embodiment, and the holding portion 53 of the busbar assembly 50 may be provided with the assembly fixing portion 27 of the above embodiment. Further, for example, the holding portion 53 may be fastened and fixed to the housing 10 with a screw or the like.

・The shape of the housing 10, the shape of the first and second bus bars 51 and 52, and the shape of the holding portion 53 are not limited to the shape of the above-described embodiment, and may be changed according to the shape of the housing 3 of the device 2 to which the terminal block 1 is mounted. may be changed as appropriate.

Technical ideas that can be grasped from the above embodiment and modifications will be described.
(a) The terminal block according to any one of claims 1 to 7, wherein the tip of the bus bar is located on the outer peripheral side of the housing when viewed in a direction parallel to the base end of the bus bar.

According to this configuration, it is not necessary to connect the front end portion of the bus bar and the terminal on the device side within the housing in a range overlapping the housing in a direction parallel to the base end portion of the bus bar. Further, since the position for connecting the distal end portion of the bus bar and the terminal on the device side can be set in a wide range outside the housing when viewed from the direction parallel to the base end portion of the bus bar inside the housing, It becomes easier to secure the space required for connecting the tip of the bus bar and the terminal on the device side. Therefore, it is possible to prevent the parts inside the device from being restricted in order to secure the space required for connecting the tip portion of the bus bar and the terminal on the device side, and the degree of freedom in designing the inside of the housing can be improved.

Further, when the terminal block is attached to the device, the housing is arranged with respect to the housing so as to cover the mounting hole provided in the housing for mounting the terminal block from the outside of the housing. As such, the housing is larger than the mounting hole. Therefore, when viewed in a direction parallel to the base end of the busbar, the distal end of the busbar, which is positioned on the outer peripheral side of the housing, is positioned on the outer peripheral side of the mounting hole. A busbar assembly having busbars is provided separately from a housing that is arranged with respect to the housing from the outside of the housing, and can be fixed to the housing from the inside of the housing. Therefore, the terminal block can be attached to the housing even when the front end of the busbar is located on the outer peripheral side of the attachment hole when viewed in a direction parallel to the base end of the busbar. Therefore, the position of the tip of the bus bar can be set at a desired position regardless of the size of the mounting hole. Therefore, when viewed from a direction parallel to the base end of the busbar, the tip of the busbar can be positioned on the outer peripheral side of the mounting hole, so the position of the tip of the busbar inside the housing can be freely determined. can increase

(b) The housing has a fixed portion that is fixed to the housing of the device, and an insertion portion that protrudes from the fixed portion and into which the base end portion of the bus bar that penetrates the fixed portion is inserted, and has an annular shape. None A seal member is mounted on the fixed portion to seal between the device and the fixed portion, and the bus bar penetrates the inner side of the seal member and a base end portion of the bus bar in the insertion portion. 5. The terminal block according to any one of claims 1 to 4, wherein the tip of the bus bar is located on the outer peripheral side of the inner peripheral edge of the seal member when viewed from a direction parallel to .

According to this configuration, the connection between the distal end portion of the bus bar and the terminal on the device side is within the range inside the housing in a direction parallel to the base end portion of the bus bar in the insertion portion and inside the inner peripheral edge of the seal member. You don't have to do it in the overlapping range. Then, the position where the tip of the bus bar and the terminal on the device side are connected is set to a wide range outside the inner peripheral edge of the seal member when viewed from the direction parallel to the base end of the bus bar in the insertion section inside the housing. Therefore, it becomes easy to secure the space required for connecting the tip of the bus bar and the terminal on the device side. Therefore, it is possible to prevent the parts inside the device from being restricted in order to secure the space required for connecting the tip portion of the bus bar and the terminal on the device side, and the degree of freedom in designing the inside of the housing can be improved.

Moreover, the mounting hole provided in the housing of the device for mounting the terminal block is generally smaller than the inner peripheral edge of the sealing member. Therefore, when viewed from a direction parallel to the base end portion of the bus bar in the insertion portion, the tip of the bus bar located on the outer peripheral side of the inner peripheral edge of the seal member is located on the outer peripheral side of the mounting hole. A busbar assembly having busbars is provided separately from a housing that is arranged with respect to the housing from the outside of the housing, and can be fixed to the housing from the inside of the housing. Therefore, the terminal block can be attached to the housing even when the tip of the busbar is located on the outer peripheral side of the attachment hole when viewed from the direction parallel to the base end of the busbar in the insertion portion. Therefore, the position of the tip of the bus bar can be set at a desired position regardless of the size of the mounting hole. Therefore, when viewed from a direction parallel to the base end of the busbar in the insertion section, the tip of the busbar can be positioned on the outer peripheral side of the mounting hole. degree of freedom can be increased.

DESCRIPTION OF SYMBOLS 1, 1A... Terminal block 2, 2A... Device 3... Case 5A, 6A... Bus bar in device 9... Fixing part in device 10... Housing 11... Fixing part 12... Insertion part 50, 50A... Bus bar assembly 51, 51A... Section 1 busbar (busbar)
52, 52A... Second bus bar (bus bar)
53... Holding part 61... Connector fitting part 71... Positioning and fixing part 101, 102... In-equipment connector

Claims (5)

a busbar assembly having a busbar made of metal and a holding portion that exposes a distal end portion and a base end portion of the busbar to hold the busbar;
a housing into which the base end portion of the bus bar is inserted and the holding portion is fixed;
The busbar assembly has a connector fitting portion that is integrally molded at the tip portion of the busbar and into which an in-equipment busbar connected to the busbar or an in-equipment connector provided at the end of an electric wire can be fitted. ,
The connector fitting portion has a fitting portion having a fitting recess into which the in-equipment connector is fitted. electrically connected to the in-device bus bar or the electric wire through the in-device connector to be inserted;
The outer peripheral surface of the insertion portion has a contact surface, and the contact surface has a positioning fixing portion that can be fixed to a device internal fixing portion provided inside the device to which the terminal block is attached, and the device . Fixed structure with internal fixed part . 2. The structure for fixing a terminal block and an internal fixing portion according to claim 1, wherein said bus bar is made of a metal plate material. The busbar assembly comprises two busbars, a first busbar and a second busbar,
3. The terminal block and device interior according to claim 1, wherein the holding portion holds the first bus bar and the second bus bar such that the first bus bar and the second bus bar are spaced apart from each other by a predetermined distance. Fixed structure with fixed part . 4. The terminal block and internal fixation according to claim 1, wherein the bus bar assembly is detachable from the housing because the holding portion is detachable from the housing. Fixed structure with part . The housing has a fixed portion that is fixed to a housing of the device, and an insertion portion that protrudes from the fixed portion and into which the base end portion of the bus bar that penetrates the fixed portion is inserted,
5. The terminal according to any one of claims 1 to 4, wherein a tip of the busbar is located on an outer peripheral side of the fixing portion when viewed from a direction parallel to a base end portion of the busbar in the insertion portion. Fixing structure between the base and the fixing part inside the device .

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